x+.28x=100

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Solution for x+.28x=100 equation: 



x+.28x=100

We move all terms to the left:

x+.28x-(100)=0

We add all the numbers together, and all the variables

1.28x-100=0

We move all terms containing x to the left, all other terms to the right

1.28x=100

x=100/1.28

x=78+0.16/1.28

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